JP6284091B2 - Injection molding machine - Google Patents

Description

  The present invention relates to an injection molding machine.

  An injection molding machine manufactures a molded product by filling a molten resin into a cavity space of a mold apparatus and solidifying the resin (for example, see Patent Document 1). The molded product is taken out from the injection molding machine by a molded product take-out machine and transferred to a belt conveyor.

  An external device such as a molded product take-out machine and a belt conveyor and the injection molding machine exchange signals with each other. For example, when the state of the injection molding machine satisfies a predetermined condition, a predetermined signal is sent from the injection molding machine to an external device. Further, the predetermined operation of the injection molding machine is permitted depending on whether or not a predetermined signal sent from an external device is input.

International Publication No. 2005/068155

  Conventionally, when changing the condition for outputting a predetermined signal from an injection molding machine to an external device, it has been necessary to change the program of the injection molding machine. In addition, when changing the operation of the injection molding machine which is permitted or disapproved depending on whether or not a predetermined signal sent from an external device is input, it is necessary to change the program of the injection molding machine. Therefore, the convenience for the user is bad.

The present invention was made in view of the above problems, and aims to provide an injection molding machine can be easily changed the behavior of the injection molding machine to be disabled depending on whether the input of the predetermined signal sent from the external device To do.

In order to achieve the above object, an injection molding machine according to an aspect of the present invention includes:
A controller for permitting or rejecting the operation of the injection molding machine from at least one external device of a molded product take-out machine, a belt conveyor and a resin material supply machine controlled by a controller different from the controller of the injection molding machine A controller that permits or disallows the operation of the injection molding machine according to whether or not a predetermined signal is input;
A display unit for displaying an operation setting screen for allowing or disallowing depending on whether or not the predetermined signal is input;
An operation unit that accepts user input operations,
The setting screen includes an input field that allows the user to select one condition from a plurality of conditions included in a candidate list of operations that are permitted according to whether or not the predetermined signal is input.
The controller determines an operation to be permitted or not depending on whether or not the predetermined signal is input based on a condition selected in the input field.
The controller is
While allowing the determined operation while there is a predetermined signal input from the external device, and prohibiting the determined operation while there is no predetermined signal input from the external device,
Or
While the predetermined signal is not input from the external device, the determined operation is permitted, and while the predetermined signal is input from the external device, the determined operation is prohibited.

  According to one aspect of the present invention, there is provided an injection molding machine that can easily change conditions for outputting a predetermined signal from an injection molding machine to an external device. According to another aspect of the present invention, there is provided an injection molding machine that can easily change the operation of an injection molding machine that permits or rejects depending on whether or not a predetermined signal sent from an external device is input.

It is a figure which shows the mold clamping apparatus of the injection molding machine by one Embodiment of this invention, an ejector apparatus, and a mold thickness adjustment apparatus. It is a figure which shows the injection apparatus of the injection molding machine by one Embodiment of this invention, and a moving apparatus. It is a figure which shows the controller of the injection molding machine by one Embodiment of this invention, a display part, and an operation part. It is a figure which shows an example of the setting screen of the conditions which output a predetermined signal with respect to an external apparatus. It is a figure which shows an example of the setting screen of the operation | movement of the injection molding machine permitted or rejected according to the presence or absence of the input of the predetermined signal sent from an external device.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding components are denoted by the same or corresponding reference numerals, and description thereof will be omitted.

  The injection molding machine has a mold closing process for closing the mold apparatus, a mold clamping process for tightening the mold apparatus, a nozzle touch process for pressing the nozzle of the injection apparatus against the mold apparatus in the mold-clamped state, and injecting resin from the nozzle of the injection apparatus. An injection process for filling the mold apparatus and a pressure holding process for maintaining the resin filling pressure are performed. Subsequently, the injection molding machine has a cooling process for solidifying the resin in the mold apparatus, a weighing process for measuring the resin for the next molded product, a mold opening process for opening the mold apparatus, and a mold after the mold opening. A projecting process for projecting a molded product from the apparatus is performed. The injection molding machine repeatedly manufactures a molded product by repeating these series of steps.

  FIG. 1 is a view showing a mold clamping device, an ejector device, and a mold thickness adjusting device of an injection molding machine according to an embodiment of the present invention. FIG. 1 shows the state of the mold clamping process. In the description of the mold clamping device, the mold thickness adjusting device, and the ejector device, it is assumed that the moving direction of the movable platen when performing mold closing is the front and the moving direction of the movable platen when performing mold opening is the rear.

  The injection molding machine 10 includes a frame 11, a fixed platen 12 fixed to the frame 11, and a toggle support 15 disposed at a distance from the fixed platen 12. A plurality of (for example, four) tie bars 16 are installed between the fixed platen 12 and the toggle support 15.

  The injection molding machine 10 further includes a movable platen 13 that is disposed so as to face the fixed platen 12 and that can be moved back and forth (moved in the left-right direction in the drawing) along the tie bar 16. A movable mold 33 is attached to a surface of the movable platen 13 facing the fixed platen 12, and a fixed mold 32 is attached to a surface of the fixed platen 12 facing the movable platen 13. The fixed mold 32 and the movable mold 33 constitute a mold apparatus 30.

  An ejector plate 18 is accommodated in the internal space of the movable mold 33 so as to be movable forward and backward. An ejector pin 19 that protrudes forward is fixed to the ejector plate 18. The tip end surface of the ejector pin 19 faces the cavity space C as shown in FIG. 1 when the cavity space C is filled with the molten resin.

  The injection molding machine 10 includes a toggle mechanism 20 disposed between the movable platen 13 and the toggle support 15, a mold clamping motor 26 that operates the toggle mechanism 20, and a rotational movement of the mold clamping motor 26 in a linear motion. And a ball screw mechanism 25 serving as a transmission mechanism for converting to a toggle mechanism 20. The fixed platen 12, the movable platen 13, the toggle support 15, the toggle mechanism 20, the mold clamping motor 26, and the like constitute a mold clamping device.

  The toggle mechanism 20 includes a crosshead 24 that is movable back and forth in a direction parallel to the mold opening / closing direction, a second toggle lever 23 that is swingably attached to the crosshead 24, and a first that is swingably attached to the toggle support 15. A toggle lever 21 and a toggle arm 22 that is swingably attached to the back surface of the movable platen 13 are provided. Between the first toggle lever 21 and the second toggle lever 23 and between the first toggle lever 21 and the toggle arm 22 are linked. The toggle mechanism 20 is a so-called inner volume five-node double toggle mechanism and has a vertically symmetrical configuration.

  The ball screw mechanism 25 includes, for example, a ball screw nut 25a fixed to the cross head 24 and a ball screw shaft 25b screwed to the ball screw nut 25a. The ball screw shaft 25b is rotatably supported with respect to the toggle support 15. When the output shaft of the mold clamping motor 26 rotates, the ball screw shaft 25b rotates and the ball screw nut 25a advances and retreats, so that the cross head 24 advances and retreats.

  The toggle mechanism 20 can be operated by driving the mold clamping motor 26 and advancing and retracting the cross head 24 as a driven member. In this case, when the cross head 24 is moved forward (moved in the right direction in the figure), the movable platen 13 is moved forward to perform mold closing. Then, a mold clamping force obtained by multiplying the propulsive force of the mold clamping motor 26 by the toggle magnification is generated, and the mold clamping is performed by the mold clamping force. A mold clamping force sensor 17 is attached to a tie bar 16 that extends according to the mold clamping force. The mold clamping force sensor 17 detects the mold clamping force every predetermined time by detecting distortion (elongation) of the tie bar 16. The detected clamping force is sequentially input to the controller 81. When the cross head 24 is moved backward (moved to the left in the figure), the movable platen 13 is moved backward to perform mold opening.

  The mold clamping motor 26 is provided with a mold opening / closing position sensor 26 a that detects the distance between the movable mold 33 and the fixed mold 32. The mold opening / closing position sensor 26 a is configured by, for example, an encoder that detects the number of rotations of the mold clamping motor 26, and supplies a detection signal to the controller 81.

  The mold clamping device of this embodiment uses the toggle mechanism 20 to generate the mold clamping force. However, without using the toggle mechanism 20, the driving force generated by the mold clamping motor 26 is directly applied to the mold clamping force. May be transmitted to the movable platen 13. Further, the propulsive force generated by the mold clamping cylinder may be directly transmitted to the movable platen 13 as a mold clamping force. Further, the mold may be opened and closed by a linear motor, and the mold may be clamped by an electromagnet, and the system of the mold clamping device is not limited.

  The injection molding machine 10 includes an ejector device 27 used for ejecting a molded product. The ejector device 27 includes an ejector motor 28, an ejector rod 29, and the like. The ejector motor 28 is fixed to the movable platen 13. The rotational motion of the ejector motor 28 is converted into a linear motion by a ball screw mechanism (not shown) and transmitted to the ejector rod 29.

  When the ejector motor 28 rotates forward, the ejector rod 29 moves forward, the ejector plate 18 and the ejector pin 19 move forward, and the molded product is ejected from the movable mold 33. Further, when the ejector motor 28 rotates in the reverse direction, the ejector rod 29 moves backward, and the ejector plate 18 and the ejector pin 19 return to their original positions.

  The ejector motor 28 is provided with an ejector position sensor 28 a that detects the position of the ejector rod 29. The ejector position sensor 28 a is composed of, for example, an encoder that detects the rotation speed of the ejector motor 28, and sends a detection signal to the controller 81.

  The injection molding machine 10 includes a mold thickness adjusting device 35 that adjusts the distance between the fixed platen 12 and the toggle support 15 in accordance with the thickness of the mold device 30 in order to cope with replacement of the mold device 30 and the like. Prepare. The mold thickness adjusting device 35 includes a mold thickness motor 31, an adjustment nut 36, and the like.

  The adjustment nut 36 is supported so as to be rotatable with respect to the toggle support 15 and not to advance or retract. The adjustment nut 36 is screwed with a screw shaft portion 16 a formed at the rear end portion of the tie bar 16 that penetrates the toggle support 15. The adjustment nut 36 and the screw shaft portion 16a constitute a movement direction conversion unit, and the rotation movement of the adjustment nut 36 is converted into a straight movement of the tie bar 16 in the movement direction conversion unit. A plurality of adjustment nuts 36 are provided corresponding to the plurality of tie bars 16. A driven gear 37 is attached to the outer peripheral surface of each adjustment nut 36.

  The mold thickness motor 31 is fixed to the toggle support 15. A drive gear 34 is attached to the rotating shaft of the mold thickness motor 31. A timing belt 38 is bridged between the driving gear 34 and each driven gear 37. Instead of the timing belt 38, an intermediate gear may be disposed between the driving gear 34 and each driven gear 37.

  When the mold thickness motor 31 is rotated, the plurality of adjustment nuts 36 are rotated in synchronization with each other, and the plurality of tie bars 16 are moved forward and backward with respect to the toggle support 15. The spacing between the toggle support 15 and the movable platen 12 is optimized.

  The mold thickness motor 31 is provided with a mold thickness position sensor 31 a that detects the position of the tie bar 16 with respect to the toggle support 15. The mold thickness position sensor 31 a is composed of, for example, an encoder that detects the rotational speed of the mold thickness motor 31, and outputs a detection signal to the controller 81.

  FIG. 2 is a view showing an injection device and a moving device of an injection molding machine according to an embodiment of the present invention. In the description of the injection device and the movement device, unlike the description of the mold clamping device, the resin injection direction is assumed to be the front and the direction opposite to the resin injection direction is assumed to be the rear.

  The injection molding machine 10 further includes an injection device 40 that injects the resin melted in the heating cylinder 41 from the nozzle 42 and fills the cavity space C in the mold device 30. The injection device 40 includes an injection motor 43. The rotation of the injection motor 43 is transmitted to the ball screw shaft 44. A ball screw nut 45 that moves forward and backward by the rotation of the ball screw shaft 44 is fixed to a pressure plate 46. The pressure plate 46 is movable along guide bars 47 and 48 fixed to a base frame (not shown). The forward / backward movement of the pressure plate 46 is transmitted to the screw 52 via the bearing 49, the resin pressure detector 50, and the injection shaft 51. The screw 52 is disposed in the heating cylinder 41 so as to be rotatable and movable in the axial direction. A hopper 53 for resin supply is provided at the rear of the heating cylinder 41. The rotation movement of the metering motor 55 is transmitted to the injection shaft 51 via a connecting member 54 such as a belt or a pulley. That is, when the injection shaft 51 is rotationally driven by the metering motor 55, the screw 52 rotates.

  In the weighing step, the weighing motor 55 is driven to rotate the screw 52, and the resin pellet supplied to the rear end portion of the screw 52 is sent to the front of the screw 52. In this process, the resin pellets are softened and melted. Since the molten resin is stored in front of the screw 52, the screw 52 moves backward.

  After the weighing process, the sucking-back process is performed in which the injection motor 43 is driven and the screw 52 is rotated at a set speed without rotating the screw 52. The pressure of the molten resin stored in front of the screw 52 is reduced by the suck back process.

  In the injection process (also referred to as a filling process), the injection motor 43 is driven, the screw 52 is advanced, the molten resin is injected from the nozzle 42, and pushed into the cavity space C. The force with which the screw 52 pushes the molten resin is detected as a reaction force by the resin pressure detector 50. That is, the resin pressure applied to the screw 52 (resin injection pressure) is detected. The detected resin pressure is input to the controller 81. In addition, since the resin is thermally contracted by cooling in the cavity space C, the resin pressure (resin injection pressure) applied to the screw 52 is maintained at a predetermined pressure in the pressure-holding process in order to replenish the heat-shrinkable resin. It is.

  A position detector 57 that detects the position of the screw 52 is attached to the pressure plate 46. A detection signal from the position detector 57 is input to the controller 81. The detection signal of the position detector 57 may also be used to detect the moving speed of the screw 52.

  The injection motor 43 and the metering motor 55 are provided with encoders 43a and 55a for detecting the rotational speed. Detection signals of the encoders 43a and 55a are input to the controller 81, respectively.

  The injection molding machine 10 also includes a moving device 60 that moves the injection device 40 toward and away from the fixed mold 32. The moving device 60 includes a plasticizing moving motor 61 with a brake. The plasticizing movement motor 61 is fixed to the frame 11 of the injection molding machine 10. The output shaft of the plasticizing movement motor 61 and the ball screw shaft 62 are connected via a coupling 63. A ball screw nut 64 screwed with the ball screw shaft 62 is fixed to the piston 65, and the piston 65 is disposed in the spring cylinder 66 so as to be able to advance and retract. The spring cylinder 66 is movable along the guide 14 on the frame 11 together with the injection device 40. A spring 67 is disposed in a chamber in front of the piston 65 in the spring cylinder 66. A position sensor 68 is disposed so as to face the piston 65, and by detecting the position of the piston 65 by the position sensor 68, the bending amount of the spring 67 is detected and input to the controller 81.

  When the plasticizing movement motor 61 rotates forward, the ball screw shaft 62 rotates, the ball screw nut 64 and the piston 65 are advanced, and the injection device 40 is advanced. Then, the injection device 40 reaches the nozzle touch position, and the nozzle 42 contacts the fixed mold 32. Subsequently, when the plasticizing movement motor 61 is further driven, the piston 65 is advanced in the spring cylinder 66 against the urging force of the spring 67, the spring 67 is bent (contracted), and the nozzle 42 is fixed to the fixed mold 32. Increases the nozzle touch force to be pressed against. By detecting the amount of bending of the spring 67, the nozzle touch force can be detected. When the nozzle touch force reaches the set value, the plasticizing movement motor 61 is stopped. At this time, the brake (for example, electromagnetic brake) 61a provided in the plasticizing movement motor 61 restricts the rotation of the output shaft, and the nozzle touch force is maintained at the set value. When the plasticizing movement motor 61 is driven to rotate, the brake 61a allows the output shaft to rotate. When the plasticizing movement motor 61 rotates in the reverse direction, the ball screw shaft 62 rotates, the ball screw nut 64 and the piston 65 are retracted, and the injection device 40 is retracted.

  FIG. 3 is a diagram illustrating a controller, a display unit, and an operation unit of an injection molding machine according to an embodiment of the present invention.

  The injection molding machine 10 includes a controller 81 configured by a microcomputer or the like, a display unit 82 configured by a liquid crystal panel or the like, and an operation unit 83 configured by a keyboard or a mouse. The display unit 82 and the operation unit 83 may be configured by an integrated touch panel, and the operation unit 83 is configured by a transparent position detection unit provided on the display unit 82 to detect the touch position of the user. By doing so, the user's input operation may be accepted. In addition, the operation unit 83 may be configured by an operation panel including a numeric keypad, a cursor key, an execution key, and the like instead of a keyboard and a mouse. Further, the operation unit 83 may be configured by a touch panel position detection unit and an operation panel, and may accept an input operation by either the touch panel position detection unit or the operation panel.

  The controller 81 includes a CPU 84, a ROM 85 for storing control programs, a readable / writable RAM 86 for storing calculation results, an input interface 87, an output interface 88, a timer, a counter, and the like. The controller 81 implements various functions by causing the CPU 84 to execute programs stored in a recording medium such as the ROM 85 or an external storage unit (for example, hard disk) 89.

  The controller 81 has a function of displaying various setting screens of the injection molding machine 10 on the display unit 82. The user performs various settings of the injection molding machine 10 by operating the operation unit 83 while viewing the display unit 82. Items set by the user include, for example, an operation mode of the injection molding machine 10 and operations of various drive units of the injection molding machine 10.

  The operation modes of the injection molding machine 10 include, for example, “fully automatic mode”, “semi-automatic mode”, “manual mode”, “preparation mode”, and “off mode”. "Fully automatic mode" is a mode that automatically repeats a series of processes such as mold closing process, mold clamping process, nozzle touch process, injection process, pressure holding process, cooling process, metering process, mold opening process, and ejecting process. is there. The “semi-automatic mode” is a mode in which a series of processes is automatically performed only once. The “manual mode” is a mode in which a series of steps are performed step by step in response to a user request. The “preparation mode” is a mode for narrowing down the outputs of various drive units. The “off mode” is a mode for prohibiting the operation of various drive units.

  The controller 81 has a function of sending an operation command corresponding to each process of the injection molding machine 10 to various drive units based on various set values set by the user. Examples of the drive unit that receives an operation command from the controller 81 include a mold clamping motor 26, an ejector motor 28, a mold thickness motor 31, an injection motor 43, a metering motor 55, a plasticizing movement motor 61, and the like. .

  The controller 81 has a function of performing feedback control of various drive units based on detection results of various sensors. Examples of sensors that send detection results to the controller 81 include a mold opening / closing position sensor 26a, an ejector position sensor 28a, a mold thickness position sensor 31a, and a screw position sensor 57.

  The controller 81 has a function of determining the quality of a molded product based on actual values detected by various sensors (for example, mold clamping force, resin injection pressure, etc.). The quality of the molded product is determined by the difference between the actual value and the set value. A non-defective product is determined when the difference between the actual value and the set value is within a predetermined range, and a defective product is determined when the difference is outside the predetermined range.

  The controller 81 has a function of recording the actual value detected by the various sensors in the external storage unit 89 or the like in association with the ID of the molded product, and displaying the recorded data on the display unit 82 in response to a user request. Have.

  The controller 81 has a function of monitoring the state of the injection molding machine 10 based on detection signals from various sensors and outputting a predetermined signal to an external device of the injection molding machine 10 according to the monitoring result. An external device can detect the state of the injection molding machine 10. Here, the external device refers to a device controlled by a controller different from the controller 81 of the injection molding machine 10. Examples of the external device include a molded material take-out machine and a belt conveyor, and a resin material supply machine that supplies a resin material to the injection device 40. The predetermined signal sent to the external device is output from the output interface 88 of the controller 81. A plurality of output interfaces 88 are provided.

  FIG. 4 is a diagram illustrating an example of a condition setting screen for outputting a predetermined signal to an external device. This setting screen is displayed on the display unit 82 in response to a user operation on the operation unit 83.

  The setting screen includes input fields C1a to C4b that allow the user to select one condition from a plurality of conditions included in a candidate list of predetermined signal output conditions. The candidate list is recorded in advance in a recording medium such as the ROM 85 or the external storage unit 89. The candidate lists used in the input fields C1a to C4b have the same contents, but may have different contents. The input fields C1a to C4b are provided for each output interface 88 (that is, output channel).

  When changing the output condition, the user moves the mouse cursor to the input fields C1a to C4b, highlights them, and clicks with the mouse. In response to the click operation, a plurality of conditions included in the candidate list are popped up. In order to improve the visibility of the setting screen, some conditions included in the candidate list may be displayed in a pop-up on the setting screen, and the remaining conditions may be displayed in response to a user operation. The user places the mouse cursor on one of the plurality of pop-up conditions and highlights it, and performs a click operation with the mouse. One condition is selected by this click operation, and the selection result is recorded in a recording medium such as the RAM 86 or the external recording unit 89.

  In place of the positioning of the mouse cursor, a touch operation on the touch panel and a cursor key operation on the operation panel may be performed. Instead of a mouse click operation, an execution key operation may be performed. A numeric keypad input operation on the operation panel may be performed instead of the keyboard input operation. The numeric keypad input operation may be confirmed by operating the execution key.

  The candidate list includes conditions relating to the state of the injection molding machine, and includes, for example, the operation mode, the type of process, the operation status of the drive unit in each process (including the position of the driven unit), the operation results, and the like. As the exercise mode, for example, “full automatic mode”, “semi automatic mode”, “manual mode”, “preparation mode”, “off mode”, “full automatic mode” and “semi automatic mode” are collectively expressed. "Semi-automatic mode" and "Full mode" that represent all modes together. Examples of the operation state of the driving unit in each process include “mold closed”, “mold closed”, “mold closed position (hereinafter)”, and the like. In addition, the operation results of the drive unit in each process include, for example, “non-defective shot”, “defective shot” and the like. The candidate list also includes “OFF” indicating that the input fields C1a to C4b are not used.

  The controller 81 determines the output condition of the predetermined signal based on the condition selected in the input fields C1a to C4b. The input columns (for example, the input columns C1a and C1b) in the same row are input columns in which conditions selected by the user are AND conditions. In addition, input columns (for example, input columns C1a and C2a) in different rows are input columns in which conditions selected by the user are OR conditions. A condition in which a plurality of (for example, four) input field groups including a plurality of (for example, two) input fields in which conditions selected by the user are AND conditions is provided, and the user selects a plurality of input field groups. They are OR conditions.

  For example, in the output channel A shown in FIG. 4, “manual mode” and “measuring” are selected in the input fields C1a and C1b on the first line, and “fully automatic” is selected in the input fields C2a and C2b on the second line. “Mode” and “Weighing” are selected. In this case, (1) “manual mode” and “measuring” or (2) “fully automatic mode” and “measuring” are the conditions for outputting a predetermined signal on the output channel A. Note that “OFF” is selected for the input fields C3a to C4b on the third and fourth lines, and therefore, they are not used for setting the output conditions.

  As described above, the user can change the output condition by selecting and operating one condition from the plurality of conditions included in the candidate list while viewing the setting screen. Since it is not necessary to change the program of the injection molding machine 10, it is easy to change the output conditions. If the setting screen includes a plurality of input fields, detailed setting of the output conditions becomes possible, which is convenient for the user. Further, when there are both an input field in which conditions selected by the user are AND conditions and an input field in which conditions selected by the user are OR conditions, combinations of output conditions are expanded.

  The plurality of input fields may include an input field (not shown) that allows the user to select whether the conditions selected by the user are an AND condition or an OR condition. This input field is provided, for example, between the input field C1a and the input field C1b. When switching between whether the conditions selected in the input fields C1a and C1b are an AND condition or an OR condition, the user moves the mouse cursor to the input field and highlights it, and clicks with the mouse. In response to the click operation, a plurality of conditions (AND condition, OR condition) included in the candidate list are displayed in a pull-down manner. The user places the mouse cursor on one of the multiple pull-down conditions and highlights it, and clicks with the mouse. One condition is selected by this click operation, and the selection result is recorded in a recording medium such as the RAM 86 or the external recording unit 89.

  The setting screen includes a numerical value column C11 for inputting a numerical value as an additional condition for the condition selected in the input columns C1a to C4b. A numerical value column C11 is provided for each of the input columns C1a to C4b. When the user wants to input a numerical value as an additional condition, the user moves the mouse cursor to the numerical value column C11 to highlight it, performs a click operation with the mouse, and inputs the numerical value with the keyboard. The controller 81 determines the output condition of the predetermined signal based on the condition selected in the input fields C1a to C4b and the numerical value input as the additional condition of the condition.

  For example, in the output channel B shown in FIG. 4, “full-automatic mode” and “mold closing position (hereinafter)” are selected in the input columns C1a and C1b in the first row, and the numerical value column C11 corresponding to the input column C1b. “10.0” mm is input. In this case, (a) the operation mode is “fully automatic mode” or “semi-automatic mode”, and (b) the position of the movable mold 33 is “10.0” mm or less from the “mold closed position” in the output channel B. This is a condition for outputting a predetermined signal.

  The setting screen includes a delay time column C12 for inputting the delay time of the output timing of the predetermined signal. This delay time column C12 is provided for each of the output channels A to D. When the user wants to input the delay time, the user moves the mouse cursor to the delay time column C12 to highlight it, performs a click operation with the mouse, and inputs a numerical value with the keyboard. The controller 81 delays the output timing of the predetermined signal by the delay time input in the delay time column C12. When the delay time column C12 is the default of 0.00 (zero), when the state of the injection molding machine 10 satisfies the output condition, output of a predetermined signal is started.

  The setting screen includes an operation time column C13 for inputting an output time (operation time) of a predetermined signal. This operation time column C13 is provided for each of the output channels A to D. When the user wants to input the output time, the user moves the mouse cursor to the operation time column C13 to highlight it, performs a click operation with the mouse, and inputs a numerical value with the keyboard. The controller 81 outputs a predetermined signal during the output time input in the operation time column C13. When the operation time column C13 is the default of 0.00 (zero), the predetermined signal is output throughout the period in which the state of the injection molding machine 10 satisfies the output condition.

  The setting screen includes a selection button B11 that allows the user to select whether to permit or prohibit the output of the predetermined signal when the state of the injection molding machine 10 satisfies the conditions selected in the input fields C1a to C4b. The selection button B11 is provided for each of the input fields C1a to C4b. When the user wants to switch between permission and prohibition, the user moves the mouse cursor to the selection button B11 and highlights it, and clicks with the mouse. In response to the click operation, the selection button B11 is switched between a state where “◯” is displayed and a state where nothing is displayed. In the state where nothing is displayed, the controller 81 permits the output of a predetermined signal when the state of the injection molding machine 10 satisfies the conditions selected in the input fields C1a to C4b, and outputs the output when the conditions are not satisfied. Ban. On the other hand, in the state where “◯” is displayed, the controller 81 prohibits the output of a predetermined signal when the state of the injection molding machine 10 satisfies the conditions selected in the input fields C1a to C4b, and When a predetermined condition other than the condition selected in C1a to C4b is satisfied, the output of the predetermined signal is permitted. The “predetermined condition” is recorded on the recording medium together with the candidate list.

  For example, in the output channel D shown in FIG. 4, the display of the selection button B11 corresponding to the input field C1a in the first row is “◯”. Then, “manual mode” and “mold closing completion” are selected in the input fields C1a and C1b on the first line. In this case, (a) the operation mode is a mode other than “manual mode” (that is, “full automatic mode”, “semi-automatic mode”, “preparation mode”, or “off mode”), and (b) “mold closing complete” "Is a condition for outputting a predetermined signal on the output channel D. Note that “OFF” is selected for the input fields C2a to C4b in the second to fourth lines, and thus is not used for setting the output conditions.

  The setting screen includes an ON / OFF button B12 that allows the user to select use or non-use of the output channel. The ON / OFF button B12 is provided for each of the output channels A to D. For example, when the user wants to switch use / non-use of the output channel A, the user moves the mouse cursor to the ON / OFF button B12 of the output channel A and highlights it, and performs a click operation with the mouse. In accordance with the click operation, the display of the ON / OFF button B12 is switched between “OFF” and “ON”. In the case of “OFF”, the controller 81 prohibits the output of a predetermined signal from the output interface 88 of the output channel A regardless of the state of the injection molding machine 10. On the other hand, in the case of “ON”, the controller 81 outputs a predetermined signal when the state of the injection molding machine 10 satisfies the output condition.

  The setting screen may include a memo input field (not shown) that displays information input by the user. The memo input field is provided for each output interface 88 (that is, output channel). The user puts the mouse cursor in the memo input field, highlights it, performs a click operation with the mouse, and inputs information with the keyboard. The input information is recorded in a recording medium such as the RAM 86 or the external recording unit 89 and displayed in the memo input field. For example, the user can input the name of the output interface (connection terminal) 88, information on the external device connected to the output interface 88, the output condition of a predetermined signal at the output interface 88, and the like. This further increases convenience for the user.

  The controller 81 has a function (interlock function) for allowing or rejecting the operation of the injection molding machine 10 according to whether or not a predetermined signal is input from an external device of the injection molding machine 10. Thereby, breakage of the injection molding machine 10 and molding defects can be prevented. A predetermined signal from the external device is input to the input interface 87 of the controller 81. A plurality of input interfaces 87 are provided.

  FIG. 5 is a diagram showing an example of a setting screen for the operation of the injection molding machine that permits or disallows depending on whether or not a predetermined signal sent from an external device is input. FIG. 5A shows a state in which the candidate list condition is pop-up displayed in the column C21, and FIG. 5B shows a state in which the candidate list condition is pop-up displayed in the column C22. This setting screen is displayed on the display unit 82 in response to a user operation on the operation unit 83.

  The setting screen includes input fields C21 and C22 that allow the user to select one condition from a plurality of conditions included in the candidate list of operations that are permitted according to whether or not a predetermined signal is input. The candidate list is recorded in advance in a recording medium such as the ROM 85 or the external storage unit 89. The candidate lists used in the input fields C21 and C22 have different contents, but the same contents may be used. The input fields C21 and C22 are provided for each input interface 87 (that is, input channel).

  When the user changes the permitted operation according to whether or not a predetermined signal is input, the user moves the mouse cursor to the input fields C21 and C22, highlights them, and clicks with the mouse. In response to the click operation, a plurality of conditions included in the candidate list are popped up. In order to improve the visibility of the setting screen, some conditions of the candidate list may be displayed in a pop-up on the setting screen, and the remaining conditions may be displayed in response to a user operation. The user places the mouse cursor on one of the plurality of pop-up conditions and highlights it, and performs a click operation with the mouse. One condition is selected by this click operation, and the selection result is recorded in a recording medium such as the RAM 86 or the external recording unit 89.

  The candidate list for the input field C21 includes conditions regarding the operation mode of the injection molding machine 10. The operation mode includes, for example, “full-automatic mode”, “semi-automatic mode”, “manual mode”, “preparation mode”, “off mode”, “full-semiautomatic mode”, “full-mode”, and the like. The candidate list also includes “OFF” indicating that the input field C21 is not used.

  The candidate list for the input field C22 includes conditions related to the process of the injection molding machine 10. As the process, for example, “injection”, “weighing”, “suck back”, “mold closing”, “mold opening”, “ejector protrusion”, “ejector return”, “mold thickness advance”, “mold thickness reverse”, There are “plasticization advance (injection device advance)” and “plasticization backward (injection device backward)”. The candidate list also includes “OFF” indicating that the input field C21 is not used.

  Based on the conditions selected in the input fields C21 and C22, the controller 81 determines an operation to be permitted or rejected depending on whether or not a predetermined signal is input. The input columns C21 and C22 are input columns in which conditions selected by the user are AND conditions.

  For example, in the channel G shown in FIG. 5B, “Fully automatic mode” is selected in the input field C21, and “Ejector return” is selected in the input field C22. Accordingly, in the channel G, the “fully automatic mode” and the “return ejector” are permitted in accordance with whether or not a predetermined signal is input.

  As described above, the user can change the operation to be permitted or rejected according to the presence or absence of the input of the predetermined signal by selecting and operating one condition from the plurality of conditions included in the candidate list while viewing the setting screen. Since it is not necessary to change the program of the injection molding machine 10, it is easy to change the operation that is permitted or not depending on whether or not a predetermined signal is input. If the setting screen includes a plurality of input fields, detailed settings of operations that are permitted or rejected depending on whether or not a predetermined signal is input can be performed, which is convenient for the user.

  The setting screen includes a selection button B21 that allows the user to select the correspondence between the presence / absence of a predetermined signal input and the permission / inhibition of the operation determined based on the conditions selected in the input fields C21 and C22. The selection button B21 is provided for each of the input channels A to H. When the user wants to switch the correspondence, the user moves the mouse cursor to the selection button B21 and highlights it, and clicks with the mouse. In response to the click operation, the display of the selection button B21 is switched between “NO” and “NC”. In the case of “NO”, the controller 81 permits an operation determined in advance based on the conditions selected in the input fields C21 and C22 while there is no input of a predetermined signal, and in advance while there is an input of the predetermined signal. An interlock is applied to prohibit the determined action. On the other hand, in the case of “NC”, the controller 81 permits the operation determined in advance based on the conditions selected in the input fields C21 and C22 while the predetermined signal is input, and while the predetermined signal is not input. The interlock is applied to prohibit the predetermined operation. By changing the correspondence relationship, the condition for interlocking can be optimized according to the type of external device.

  The setting screen includes an ON / OFF button B22 that allows the user to select use or non-use of each input channel. For example, when the user wants to switch use / non-use of the input channel G, the user moves the mouse cursor to the ON / OFF button B22 of the input channel G and highlights it, and clicks with the mouse. In accordance with the click operation, the display of the ON / OFF button B22 is switched between “OFF” and “ON”. In the case of “OFF”, the input channel G is not used, and the injection molding machine 10 operates regardless of the input status at the input interface 87 of the input channel G. On the other hand, in the case of “ON”, the input channel G is used, and the injection molding machine 10 determined in advance based on the conditions selected in the input fields C21 and C22 according to the input status at the input interface 87 of the input channel G. Is permitted.

  The setting screen includes a memo input field (not shown) that displays information input by the user. The memo input field is provided for each input interface 88 (that is, input channel). This further increases convenience for the user.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments and the like, and various modifications and substitutions may be made within the scope of the present invention described in the claims. Is possible.

DESCRIPTION OF SYMBOLS 10 Injection molding machine 30 Mold apparatus 32 Fixed mold 33 Movable mold 81 Controller 82 Display part 83 Operation part 84 CPU
85 ROM
86 RAM
87 Input interface 88 Output interface 89 External storage

Claims (3)

A controller for permitting or rejecting the operation of the injection molding machine from at least one external device of a molded product take-out machine, a belt conveyor and a resin material supply machine controlled by a controller different from the controller of the injection molding machine A controller that permits or disallows the operation of the injection molding machine according to whether or not a predetermined signal is input;
A display unit for displaying an operation setting screen for allowing or disallowing depending on whether or not the predetermined signal is input;
An operation unit that accepts user input operations,
The setting screen includes an input field that allows the user to select one condition from a plurality of conditions included in a candidate list of operations that are permitted according to whether or not the predetermined signal is input.
The controller determines an operation to be permitted or not depending on whether or not the predetermined signal is input based on a condition selected in the input field.
The controller is
While allowing the determined operation while there is a predetermined signal input from the external device, and prohibiting the determined operation while there is no predetermined signal input from the external device,
Or
The injection molding characterized in that the determined operation is permitted while no predetermined signal is input from the external device, and the determined operation is prohibited while the predetermined signal is input from the external device. Machine.   The injection according to claim 1, wherein the setting screen includes a button that allows a user to select a correspondence relationship between presence / absence of input of the predetermined signal and permission / inhibition of an operation determined based on a condition selected in the input field. Molding machine. The setting screen includes a plurality of the input fields,
The injection molding machine according to claim 1 or 2, wherein the controller determines an operation to be permitted or rejected depending on whether or not the predetermined signal is input based on a condition selected in the plurality of input fields.

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